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inn [45]
3 years ago
13

Which statement best describes what will occur if enough thermal energy is removed from the system to cause a cha

Physics
1 answer:
trasher [3.6K]3 years ago
7 0

Answer:

А Molecular energy will decrease, and the substance will change from a gas to a liquid.

Explanation:

The right choice is that molecular energy will decrease for the system and the substance will change from a gas to a liquid.

  • When thermal energy is removed from a system, molecular energy reduces.
  • Thermal energy is a form of kinetic energy
  • The energy causes an increase in the average speed of the molecule in a substance.
  • When the energy is removed, the molecular speed reduces and this causes a gas to condense to liquids.
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Four 50-g point masses are at the corners of a square with 20-cm sides. What is the moment of inertia of this system about an ax
deff fn [24]

Answer:

moment of inertia I ≈ 4.0 x 10⁻³ kg.m²

Explanation:

given

point masses = 50g = 0.050kg

note: m₁=m₂=m₃=m₄=50g = 0.050kg

distance, r, from masses to eachother = 20cm = 0.20m

the distance, d, of each mass point from the centre of the mass, using pythagoras theorem is given by

= (20√2)/ 2 = 10√2 cm =14.12 x 10⁻² m  

moment of inertia is a proportion of the opposition of a body to angular acceleration about a given pivot that is equivalent to the entirety of the products of every component of mass in the body and the square of the component's distance from the center

mathematically,

I = ∑m×d²

remember, a square will have 4 equal points

I = ∑m×d² = 4(m×d²)

I = 4 × 0.050 × (14.12 x 10⁻² m)²

I = 0.20 × 1.96 × 10⁻²

I =  3.92 x 10⁻³ kg.m²

I ≈ 4.0 x 10⁻³ kg.m²

attached is the diagram of the equation

7 0
3 years ago
Under which circumstances would protesters’ right to assembly most likely be protected?
ICE Princess25 [194]

Answer:

Explanation:

Mob violence is never protected. Organizers are always careful about not letting things get out of hand. Not D

That remark sort of applies to C as well. Property destruction is never protected.

B is something assemblies are allowed to do. So B.

A falls into the same category as C and D. You may not like the fact that he/she is doing something illegal, but you can't take away their privacy.

7 0
3 years ago
A bicycle traveled 150 meters west from point A to point B. Then it took the same route and came back to point A. It took a tota
Elan Coil [88]
The average speed is (distance)/(time) = 300m / 2min. That's 150m per minute, or 2.5m per second. The average velocity is (displacement)/(time) = (distance from the start point to the end point regardless of the route)/(time)= zero.
6 0
4 years ago
Read 2 more answers
Water has a heat capacity of 4.184 J/g °C. If 50 g of water has a temperature of 30ºC and a piece of hot copper is added to the
EleoNora [17]

Answer:

asi que sobre todo lol siento soy mexican y agora no se Como escribir en ingles

soi aamso jodidamente lol siento que me enfrie want thig ror you

Explanation:

asi que sobre todo lol siento soy mexican y agora no se Como escribir en ingles

soi aamso jodidamente lol siento que me enfrie want thig ror you

3 0
3 years ago
The Nile river excellent for. what
myrzilka [38]
1.) Transportation og goods and people

2.) Farming because of the rich minerls in its rivers

3.) The fertile soil near the river which helpes grow flax, wheat and papyrus.
7 0
3 years ago
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